diff --git a/.github/workflows/release-chectl.yml b/.github/workflows/release-chectl.yml
index b21e1ffcd..92188ec8d 100644
--- a/.github/workflows/release-chectl.yml
+++ b/.github/workflows/release-chectl.yml
@@ -8,10 +8,6 @@ on:
         description: 'The version that is going to be released. Should be in format 7.y.z'
         required: true
         default: '7.y.z'
-      dwoVersion:
-        description: 'The version of DevWorkspace Operator used in the release. Should be in format v0.y.z'
-        required: true
-        default: 'v0.y.z'
       forceflag:
         description: 'To force creation of .x branch, use --force flag here'
         default: ''
@@ -51,21 +47,6 @@ jobs:
             chectlVersion="${{ github.event.inputs.version }}"
           fi
 
-          if [[ "${{ github.event.inputs.dwoVersion }}" == "" ]] || [[ "${{ github.event.inputs.dwoVersion }}" == "v0.y.z" ]]; then
-            # TODO using a fixed version of latest DWO release, until new DWO release workflow will be implemented
-            dwoVersion=v0.7.2
-
-            # the following block of code can be uncommented to automatically use the latest available version of DWO
-            # versions=$(curl \
-            #   -H "Authorization: bearer ${GITHUB_TOKEN}" \
-            #   -X POST -H "Content-Type: application/json" --data \
-            #   '{"query": "{ repository(owner: \"devfile\", name: \"devworkspace-operator\") { refs(refPrefix: \"refs/tags/\", last: 2, orderBy: {field: TAG_COMMIT_DATE, direction: ASC}) { edges { node { name } } } } }" } ' \
-            #   https://api.github.com/graphql)
-            # dwoVersion=$(echo "${versions[@]}" | jq '.data.repository.refs.edges[1].node.name | sub("\""; "")' | tr -d '"')
-          else
-            dwoVersion="${{ github.event.inputs.dwoVersion }}"
-          fi
-
           # generic method to call a GH action and pass in a single var=val parameter
           invokeAction() {
               this_repo=$1
@@ -95,4 +76,4 @@ jobs:
           }
 
           # invoke action from chectl repo
-          invokeAction che-incubator/chectl "Release - create pull request for upcoming release" "4008310" "main" "version=${chectlVersion},dwoVersion=${dwoVersion}"
+          invokeAction che-incubator/chectl "Release - create pull request for upcoming release" "4008310" "main" "version=${chectlVersion}"
diff --git a/.github/workflows/release-community-operator-PRs.yml b/.github/workflows/release-community-operator-PRs.yml
index fe09f3a31..d17abf648 100644
--- a/.github/workflows/release-community-operator-PRs.yml
+++ b/.github/workflows/release-community-operator-PRs.yml
@@ -52,3 +52,17 @@ jobs:
           export QUAY_USERNAME_OS=${{ secrets.QUAY_ECLIPSE_CHE_OPERATOR_OPENSHIFT_USERNAME }}
           export QUAY_PASSWORD_OS=${{ secrets.QUAY_ECLIPSE_CHE_OPERATOR_OPENSHIFT_PASSWORD }}
           ./make-release.sh --prepare-community-operators-update ${{ github.event.inputs.forceflag }} -p ${{ github.event.inputs.platforms }}
+      - name: Create failure MM message
+        if: ${{ failure() }}
+        run: |
+          echo "{\"text\":\":no_entry_sign: Che Community Operator ${{ github.event.inputs.version }} release has failed: https://github.com/eclipse-che/che-operator/actions/workflows/release-community-operator-PRs.yml\"}" > mattermost.json
+      - name: Create success MM message
+        run: |
+          echo "{\"text\":\":white_check_mark: Che Community Operator ${{ github.event.inputs.version }} release PR have been created: Kubernetes -> https://github.com/k8s-operatorhub/community-operators/pulls ; Openshift -> https://github.com/redhat-openshift-ecosystem/community-operators-prod/pulls\"}" > mattermost.json
+      - name: Send MM message
+        if: ${{ success() }} || ${{ failure() }}
+        uses: mattermost/action-mattermost-notify@1.1.0
+        env:
+          MATTERMOST_WEBHOOK_URL: ${{ secrets.MATTERMOST_WEBHOOK_URL }}
+          MATTERMOST_CHANNEL: eclipse-che-releases
+          MATTERMOST_USERNAME: che-bot
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 02fd750a7..6d256a1b6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,9 +6,6 @@ on:
       version:
         description: 'The version that is going to be released. Should be in format 7.yy.z'
         required: true
-      dwoVersion:
-        description: 'The version of DevWorkspace Controller. Should be in format v0.y.z'
-        required: true
       forceRecreateTags:
         description: If true, tags will be recreated. Use with caution
         required: false
@@ -68,8 +65,6 @@ jobs:
           IMAGE_REGISTRY_USER_NAME: eclipse
         run: |
           CHE_VERSION=${{ github.event.inputs.version }}
-          DWO_VERSION=${{ github.event.inputs.dwoVersion }}
-          if [[ ${DWO_VERSION} != "v"* ]]; then DWO_VERSION="v${DWO_VERSION}"; fi
           echo "CHE_VERSION=${CHE_VERSION}"
           BRANCH=${CHE_VERSION%.*}.x
           echo "BRANCH=${BRANCH}"
@@ -88,10 +83,10 @@ jobs:
           export QUAY_ECLIPSE_CHE_PASSWORD=${{ secrets.QUAY_PASSWORD }}
 
           if [[ ${CHE_VERSION} == *".0" ]]; then
-            ./make-release.sh ${CHE_VERSION} --release --check-resources --release-olm-files --dev-workspace-controller-version ${DWO_VERSION}
+            ./make-release.sh ${CHE_VERSION} --release --check-resources --release-olm-files
           else
             git checkout ${BRANCH}
-            ./make-release.sh ${CHE_VERSION} --release --release-olm-files --dev-workspace-controller-version ${DWO_VERSION}
+            ./make-release.sh ${CHE_VERSION} --release --release-olm-files
           fi
 
           # default robot account on quay does not have permissions for application repos